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Survey design and analysis : principles, cases, and procedures / by Herbet Hyman ; with a foreword by Paul F. Lazarsfeld.
- 300.72 H9963
- Hyman, Herbert Hiram, 1918-
- Free Press ; Collier-Macmillan Ltd.,
- c1955
- New York : London :
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Sequential analysis / by Abraham Wald.
- 519.54 W157
- Wald, Abraham, 1902-1950.
- John Wiley & Sons ; Chapman & Hall,
- c1947
- New York : London :